1-778-759-9864
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BCFurnace
3" HIGH LIMIT SWITCH L220-20F 3 High Limit Control Switches furnace part available in Vancouver, Burnaby, Port Moody, Langley, North Vancouver, Richmond, Maple Ridge, Delta, West Vancouver, New Westminster, Surrey, Coquitlam, Port Coquitlam, Pitt Meadows

3" HIGH LIMIT SWITCH L220-20F 3 High Limit Control Switches

BCFURNACE

543-045

CA$68.83

+5% Tax • Shipping calculated at checkout.

U.S. Duties/Taxes, if applicable, may be due at time of delivery.

Name

3" HIGH LIMIT SWITCH L220-20F

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

Secure Payment
Fast Delivery
Local Pickup

Product Details

Description

Ensure the safe and efficient operation of your heating system with this premium 3-inch high limit switch. Designed as a critical safety component for residential furnaces and HVAC equipment, this thermal limit control monitors internal temperatures to prevent overheating. The switch is engineered to automatically interrupt the electrical circuit if the temperature reaches the pre-set 220°F safety threshold, protecting the heat exchanger and preventing potential fire hazards. Featuring a 20°F reset differential, it allows the system to resume normal operation once safe temperatures are restored. This durable replacement part is essential for maintaining HVAC system longevity and ensuring home climate safety.

Specifications

Type
High Limit Safety Switch
Size
3-inch probe
Dimensions
3 inches × unknown × unknown
Application
Used primarily in gas-fired furnaces, electric heaters, and air handling units to monitor heat exchanger temperatures and provide overheat protection.
Specifications
Limit Temperature: 220°F; Temperature Differential: 20°F; Switch Type: Normally Closed (opens on temperature rise); Automatic reset functionality.

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Frequently Asked Questions

Is the 543-045 a genuine OEM part?
Yes, the 543-045 is a genuine OEM replacement part manufactured by BCFurnace. We source all 3 Limit Switches from authorized distributors to ensure exact-fit compatibility. This 3 Limit Switches is backed by our 100% compatibility guarantee — if it doesn't fit your furnace, we'll make it right.
How do I know if the 543-045 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (543-045) with your furnace model number. Visit the BCFurnace page on our site and enter your model number in the search bar — our system will show all compatible 3 Limit Switches for your specific unit. You can also call our technicians at 1-778-759-9864 for free compatibility verification.
How fast can I get the 543-045 shipped?
Most 3 Limit Switches including the 543-045 ship within 1–2 business days from our warehouse. We ship across Canada and the United States with tracking on every order. For urgent BCFurnace repairs, contact us at 1-778-759-9864 for expedited shipping options.
Can I pick up the 543-045 at your store?
Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. 3 Limit Switches orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 543-045 is in stock before visiting.

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